20026172355

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{328271}}^1$

素因数の和:328376

約数の個数: 48

約数和(自身を含む): 37722392064

約数和(自身を除く): 17696219709

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 83, 105, 147, 245, 249, 415, 581, 735, 1245, 1743, 2905, 4067, 8715, 12201, 20335, 61005, 328271, 984813, 1641355, 2297897, 4924065, 6893691, 11489485, 16085279, 27246493, 34468455, 48255837, 80426395, 81739479, 136232465, 190725451, 241279185, 408697395, 572176353, 953627255, 1335078157, 2860881765, 4005234471, 6675390785, 20026172355]

約数ペア:

[(1, 20026172355), (3, 6675390785), (5, 4005234471), (7, 2860881765), (15, 1335078157), (21, 953627255), (35, 572176353), (49, 408697395), (83, 241279185), (105, 190725451), (147, 136232465), (245, 81739479), (249, 80426395), (415, 48255837), (581, 34468455), (735, 27246493), (1245, 16085279), (1743, 11489485), (2905, 6893691), (4067, 4924065), (8715, 2297897), (12201, 1641355), (20335, 984813), (61005, 328271)]